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Finding the Fourth Proportional to 130,667.68, 195,846 and 91,010.08

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Solution

The fourth proportional to 130,667.68, 195,846 and 91,010.08 is: 136,406.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,667.68 : 195,846 = 91,010.08 : x
  2. Step 2: Convert to fraction form
    130,667.68/195,846 = 91,010.08/x
  3. Step 3: Cross multiply
    130,667.68x = 195,846 × 91,010.08
  4. Step 4: Simplify right side
    130,667.68x = 17,823,960,127.68
  5. Step 5: Solve for x
    x = 17,823,960,127.68/130,667.68
  6. Step 6: Final answer
    x = 136,406.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.